[R] Re : Re: descriptive statistics

[effeesse]

Thanks! I got the results! Now I would like to put them in a nice and
readable plot to see if there are outlier means or variances. Using
"plot(by_many$mean)" I got "Error in by_many$mean : object of type 'closure'
is not subsettable".

Another question: I have done the principal components analysis on the same
group of variables (V1--V5) I used before. I'd like to get a similar
descriptive analysis of these principal components by variable V. Correct me
if I am wrong; should I run it on the scores of the 2 or 3 principal
components I obtained in the PCA?
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